CVS: cvs.openbsd.org: ports

[George Koehler]

CVSROOT:        /cvs
Module name:    ports
Changes by:     gkoeh...@cvs.openbsd.org        2022/08/01 09:00:04

Modified files:
        graphics/png   : Makefile 

Log message:
Unbreak png on powerpc64 by passing -mvsx

Diff from Brad Smith, edited by me